[Nix-dev] how to add buildInput with derivation

[Bjørn Forsman]

On 8 November 2016 at 22:01, Stefan Huchler <stefan.huchler at mail.de> wrote:
> Because I have problems with qutebrowser I want to try out the new
> qtwebengine backend.
>
> I am not 100% shure that I edit the right variable but I want to add
> qtwebengine to the buildInputs variable of that package:
>
>    {
>      packageOverrides = pkgs: rec {
>        qutebrowser = pkgs.stdenv.lib.overrideDerivation pkgs.qutebrowser (oldAttrs : {
>          buildPythonApplication.buildInputs = [
>            qtbase qtwebkit-plugins qtwebengine
>            gst-plugins-base gst-plugins-good gst-plugins-bad gst-plugins-ugly gst-libav
>            glib_networking
>          ];
>        });
>      };
>    }
>
> I get then the error:
>
> error: undefined variable ‘qtbase’ at /home/.../.nixpkgs/config.nix:5:12
>
> here is the package I want to manipulate:
>
> https://github.com/NixOS/nixpkgs/blob/master/pkgs/applications/networking/browsers/qutebrowser/default.nix
>
> Can somebody give me a hint what I did wrong? And if that that would
> work to get the qtwebengine backend availible?

Try

  packageOverrides = pkgs: rec {
    qutebrowser = pkgs.qutebrowser.overrideDerivation (oldAttrs: rec {
      nativeBuildInputs = oldAttrs.nativeBuildInputs ++ [
        pkgs.qt5.qtwebengine
      ];
    });
  };

Best regards,
Bjørn Forsman